15550342219 has 2 divisors, whose sum is σ = 15550342220. Its totient is φ = 15550342218.

The previous prime is 15550342217. The next prime is 15550342261. The reversal of 15550342219 is 91224305551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15550342219 - 2¹ = 15550342217 is a prime.

It is a super-2 number, since 2×15550342219² (a number of 21 digits) contains 22 as substring.

Together with 15550342217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15550342217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775171109 + 7775171110.

It is an arithmetic number, because the mean of its divisors is an integer number (7775171110).

Almost surely, 2^15550342219 is an apocalyptic number.

15550342219 is a deficient number, since it is larger than the sum of its proper divisors (1).

15550342219 is an equidigital number, since it uses as much as digits as its factorization.

15550342219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 15550342219 in words is "fifteen billion, five hundred fifty million, three hundred forty-two thousand, two hundred nineteen".